Number of n X 4 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300608
Number of n X 4 0..1 arrays with every element equal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =30a(2) =277a(3) =2347a(4) =19532a(5) =164619a(6) =1387896a(7) =11697909a(8) =98591087a(9) =830954473a(10) =7003554684a(11) =59028229212a(12) =497509382092
External references
- oeis: A300608